Icom IC-A210 Service Manual page 94

(Addendum page)
July 2019
• MAIN UNIT 2/3 (for only IC-A210E #03)
FROM
PA-EUR UNIT
4.0 V
RX
J3
C2 C355
C354 C501 C3
82P
0.001 82P 0.001 0.001
L64 D1
L63
C2012C C2012C
SJ050010 HVU187
R10
8C
100
RF_AGC
R416 R417
0 56K
MAIN UNIT (1/3)
FIL2
FIL2
FIL1
FIL1
TUNE1
TUNE1
AM/FM
AM/FM
Q55
DTC144EU
5C
AM Mode: 0.9 V
ANL function ON: 0.1 V
DET
FM Mode: 0 V
ANL function OFF: 5.0 V
ANL
5C
D29
R173
5.0 V
DB2S31400 15K
R160
R174 R175
22K
10K
*C81
MAIN UNIT #03 (3/3)
R186
5 *C189
3
5
4 3
AF_DETOUT
R198 R196 *R191
1
4
IC38
1
39K
2 39K
TA75S01F
2
IC37
2.0 V
2.0 V
TA75S01F
RX: 2.7 V
TX: 0 V
4
D2
*L3
C20 C31
1 3
HVU187 5P
5P
IC69
D3 2
ERA-50SM+
HVU187 L2 L4
E526HNA E526HNA
RX: 4.4 V
TX: 0 V
BPV
CP5
HK3-S-T
AGC1 R18
CP8
4.7K
8C
IC81
NJM2902V
1 14
2 13
3 12
4 11 C389
5 10
0.033
AGC2
6 9 R410
R411
7 8 470K
27K
AGC3
CP10
AGC_oUT
R356
100K
CP16
CP15S 2SC4116
0.9 V
0
R179 R6
8C 8C
56K
4.9 V
C175
R189
0.01
56K C186
7.9 V
Q24
0.01 Q25
2SC4215
2SC4215
R193 C196
2.0 V 0.1
10K
AM_DET_OUT
0
R207
AGC3
10K
C157 R279
0.1 4.7K
IC32
1 8
0
100P
2 7
3 6
R156
4 5
68K
R178
TC4W53FU
10K R163
100K
R158
100K
AM Mode: 3.4 V
FM Mode: 0.1 V
The underlined parts have been updated from the previous version of the addendum, or the original pages
R44
R8
47
RX: 8.1 V
TX: 0 V
*L9 C57
R462 C38 *R54
0
5P 5P
1.2U
L8
L10
E526HNA
E526HNA
24V
IC52
1 8
2 7
3 6
4 5
NJM2904V
R393
TUNE
33K
R402
CP11
10K
Q48
4 3
2
CP15
5 1
DMC561040
AM Mode: 0 V
FM Mode: 1.2 V AM Mode: 11.2 V
FM Mode: 0 V
5C
Q50
8C
2.2 V
E
*FI5
C290 C289
O I
0.01 0.01
IC45
TC4W53FU
R211 C212
1 8
2 7
*FI6
Q26 0.01
C206 100 *C292 *C291
3 6
2SC4215 O I
4 5
0.1
2.2 V
G
H
C204 R423
0.01 18K
8.1 V
R177 C169
FM_DET_OUT
0 1
9-5g
RX: 7.3 V
TX: 0 V
*R441
IC68 L52
R59
C64
1 6
GND LO
2 5 33P
IF GND 18
3 4
RF GND Q45
2SC3357
JMS-1+
A
FI3
FL-306
L12
1 IN
GND
3 GND
R61 C74 D19 OUT
1SV307
0
0.001
*FI4
FL-307
1 4
IN GND
3 2
GND OUT
C
R312
0
AGC2
F *Q20
IC39
C161
1 16
IC43
OSCIN MIXIN
R194
TC4W53FU 2 15
OSCOUT GND 0.01
C202
8 1 1K 3 14
MIXOUT N-REC
7 2 4 13
VCC N-DET
0.01
6 3 5 12 C170
IFIN RSSI
5 4 6 11
DEC IFOUT
7 10
FILOUT QUAD
8 9
100P
*C194 FILIN AFOUT
TA31136FNG
*C193
7.7 V
R201 R188 C179
82K
5.6K 0.0047
R344
6.8K
.
R8
R8
R62
22
RX: 8.0 V
TX: 0 V
*R440 C68
1st_Lo
0.001
RX: 2.7 V
MAIN UNIT #03 (1/3)
TX: 0 V
R70
1STLO
0
4
D27
2
Wide Mode Narrow Mode
1SV307
RX: 5.1 V
A 8.1 V
TX: 0 V
B
RX: 5.1 V
B 8.1 V
TX: 0 V
RX: 5.1 V
8.1 V
C
TX: 0.1 V
RX: 5.1 V
*D28 D 8.1 V
TX: 0.1 V
D E 4.1 V 0 V
F 4.0 V 0 V
G 0 V 4.1V
H 0 V 4.0 V
MAIN UNIT #03 (3/3)
24V
MAIN UNIT #03 (1/3)
2nd-Lo
2NDLO
C155
18P
2.3 V
MAIN UNIT #03 (3/3)
NOISE
NOISE
RSSI
RSSI
RSSI
Explanatory notes
RX Line
Voltage Line (24V)
Voltage Line (8V)
Voltage Line (5V)